| 摘要 |
<p>PURPOSE:To always surely engage the recessed part of a reel hub with the claw of a reel base by rotating a reel base only during period of pressing the franges of the reel hub to the inside of a cassette case by a cassette spring. CONSTITUTION:The flanges 19a, 19b of the reel hub 19 housed in the cassette case 18 and wound by a tape 20 are pressed to the inside of the cassette case by the cassette spring 21 arranged in the cassette case. Since the flange main body face having a large area is pressed to the inside of the cassette case, the rotational load of the reel hub 19 is large. Thereby when the reel hub 19 is loaded into the case and mounted and engaged on/with a reel base, the reel hub 19 is united with the reel board and thrust load such as spring force and tare is received by a bearing or the like in the vicinity of a reel spindle or the spindle of a reel motor united with the reel spindle, so that rotational load can be reduced. Consequently, the claw 14a of the reel board can surely be engaged with the recessed part 19e of the reel hub 19.</p> |
